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5, 1929- I E. R. HOLMIES ET AL 1,703,882

LET-OFF FOR LOOIS Filed July 22, 1927 Patented Mar. 5,1929.

; UNITED STATES 1,703,882 PATENT OFFICE.

ELBRIDGE HOLMES, or WORCESTER, MASSACHUSETTS, Am) :MARTIN R. AERIAL, or DANBUBY, coNNEcTTcUT, assrenons To CROMPTON & Now Es LOOM WORKS, 0E woEcEsTE MASSACHUSETTS, A coEroEATxoner MAss cnUs TTs.

LET-OFF FOR Looms.

Application me July 22,

- This invention relates to improvements in let-off devices more particularly adapted for narrow ware looms and it is the general object of the invention to provide convenient means for facilitating replacement of ex hausted warp beams.

In looms for weaving Tsuch fabrics as ribbon etc. itis not uncommon to-arrange the warp threads for .eaclrfa-bricyon a plurality of beams which are mounted on a support such as that set forth in prior patent to Holmes and .Hutchins No. 1,517,150. As shown in that patent several beams together with their friction let-off devices are carried by-an upright bar the upper end of which is pivoted to the beam and the lower end of which is detachably held in fixed position. The form of support shown in said patent is found satisfactory for the lower beams which are farthestfrom the pivot'of the bar, but replacement of the upper beams makes it necessaryto swing the bar considerably before said upper beams, will clear neighboring beams dueto the closeness of said beams to-the pivot of the bar. It is an important object of our present invention to providea sliding support for the upperend of the bar on which the beams are mounted, the purpose of this construction being to permit the upper beams to be moved rearwardly a sufficient distance to clear the adjacentbeams.

In certain looms we find that the upperv beams are at a considerable heightand are not Within easy reach of all mill operatives and it is a further object of our invention to provide means whereby the whole set of warp beamswill-not onlybe moved rearwardly to clear adjacent beams but will also be lowered so as to begmore accessible.

With these and other objects in view which will appear, as the description proceeds, our inventionresides in'the combination and arrangement of parts hereinafter described and set forth in the claims.

Inthe accompanying drawings, wherein We have shown a convenient embodiment of our invention, 1 f i 1 Fig. 1 is a vertical sectionthrough a portion of the, topfrigging of a narrow ware loom showing our invention applied thereto, Fig. 2 is an enlarged rear elevation taken in the'direction of arrow 2, Fig. 1 and showing themanner of securing the lower end of 1927. Serial No. 207,783.

one of -the supports for the. spools in fixed position, a l

Flg. 3 1s anend elevation taken in the direction of arrow 3, Fig.v 2 parts being in section,

Fig. 4 is an enlarged rear elevation taken in the direction of arrow 1, Fig. 1 and showing the manner of supporting the upper end of one of the beam bars,

Fig- 5 is an end elevation looking in the direction of arrow 5, Fig. 4 and showing the parts in normal position in full lines and in,warp spool changing position in dotted lines, and

Fig.6,is a rear elevation on a reduced scale of'the loom taken in the direction of arrow 4, Fig. 1.,

' Referring to the drawings we have shown a loom side 10 having a warp frame 11 mounted vertically thereon. Said frame 11 supports a plurality of guides 12 over which the warp threads W extend. The warp threads are suppliedby a plurality of warp beams 13 which may be supported and also tensioned by devices '1 substantially as set forth in the aforesaid patent.

these bars with respect to the frame 11.

- As shown more particularly in Figs. 1, 2

and 3 the lowerend of. the warp frame 11 is providedwith a cross girt'15 formed substantially U shaped in cross section and affording means by which the lower end of the severalcarrier bars 14 are supported. For each bar there is provided a bracket 16 having an upright ear 1'7 through which projects a bolt 18 passing through the lower end of the correspondingbar 14. A winged nut 19 affords ready means for-disconnecting the lower end of the bar and the ear.

In order to hold said bracket in place we provide as shown herein a pair of hooked bolts 20 to engage the upper part of the 'girt 15 and a single hooked bolt 21 to engage the lower portion of girt 15. By means of nuts 22 on said hooked bolts the position of the bracketlfi maybe changed longitudi nally along the girt l5. A second cross girt 23 at the upper end of the warp frame 11 provides means for supporting the upper. ends of the bars 14.

'As's'hown morepartieularly in Figs- 1, 4; and 5 there is provided a holding plate 2 1' for each bar 14, said holding plate receiving the ends of a U-bolt 25 which extends around the cross girt 23' and is held in fixed position with respect thereto by means of wardly and. rearwardly extending rod 27 having a collar 28 held to the lower end thereof. In order to connect the bar 14 to its guide rod 27 we provide a slidingeollar 29 pivotallyconnected as at 30 to the bar; The collaris free to'move along the inclined guide rod 27 and will bear-rested in its downward "and rearward movement by the fixed collar 28.

- As previously stated there are several par- .allel vertical bars 14 as shown in Fig. 6 w1th their warp beams andit is frequently neeessary torep'linisha beamof one group while the other groups are In their normal positio-n. This resultcan be accomplished by the structure set fort hherein in such a way asto enable the attendant to replace the uppermost warp beamconveniently and easily Without interference by neighboring warp beams; IVh'e'nmaking a change the winged nut 19 will be loosenedand the lower end of the bar tobe moved will be slid oi? the ear 17, at which time the collar 29 will be free to slide down from the full line to the dotted line position shown in Fig! 5, collar 28 limiting downward 'inovenient. The

- beams and corresponding upright bar 14 will then be'in the position shown in dotted lines in Fi'gi'lwhere they will be out of alignment with adjacent beams and bars.

thew-inged nutto hold the'bar in fixed "of beams easier for the attendant. tension devices indicated generally at T are 7 After t-he depleted beam has been replaced the attendant will push upwardly on the lower end of the bar :14 to cause the collar 29 to slide upwardly along the-guide rod 27 and when in proper vertical position the lower end: of the'bar willbe slipped: over car 1 7 and the bolt 18 tightened by means of P sition. l 'It is found that by inclining the rod 27 gravity will aid'in moving the warp beam toxrepl-enishing position and furthermore the warp beams are at a'lower level fthan that ordinarily occupied, thus making the change The carried by the bars 14' and cooperate with the beams to hold the warp threads under F proper tension. This feature of the device beams arranged in vertical alignment have. provided a very simple means for snpaortin a set of war) beams and for 1noving them out of alignment with neighboring beams when a change in the warp is to be made. Furthermore, it will be seen that theinovenient of the supporting or carrier bar gives practically the same motion to all of the warp beams so that those at the top ofthe bar will be out of line with adjacent beams to facilitate removal thereof, this advantage not being present in the aforesaid patent. Also, by having the guide rod 27 inclined gravity aids in the placingoi: the bar and warp beam supported thereby and also lowers the beams so as to facilitate chang ing thereof by an attendant. Furthermore, the detachable and adjustable connections between the cross girts of the warp frame and the upright carrier bars 14 make it possible to move the set of warp beams to any desired position with respect to the width of the loo-m.

Having thus described our invention it twill be apparent that changes and modifications may be made therein by those skilled inthe art without departing from the spirit and scope of the invention and we do not wish to be limited to the details herein disclosed, but what we claim is:

1. In a narrow ware loom, a set oi warp a carrier for said warp beams, located at one side only of the beam, a supporting frame, an inclined guide at the upper end of the carrier, and detachable means to hold said carrier innorma-l position, said carrier when detached from normal position moving downwardly and rearwardly along the in- "clined guide, the beams being removable from the-carrier in a. direction parallel to their axes.

2. In a narrow ware loom, a set of warp beams, a carrier for said warp b ams, located: at one side only of the beam, a down- Wardly and rearwardly extending guide, and means defining a connection between the carrier and guide, whereby the carrier is moved downwardly and rearwardly, the

beams being removable from the carrier in a: direction parallel to their axes.

3. In a narrow ware loom, a set of warp beams arranged in vertical alignment, a carrier for said beams, located at one side only of the beam, a downwardly and 'rea-rwardly inclined guide, and connections lib) extending rod secured in the upper portion of the frame, a member slidably mounted to 'move along theguide rod and having pivotal connection with the upper end of the support, and detachable means for attaching the lower end of the support to thewarp frame, said guide rod and member acting to guide the warp beams downwardly and rearwardly. i l

6. In aloom, a set of warp beams, a movable carrier to support the beams, said beams being located on one side of the carrier and removable from the latter in a direction perpendicular from the plane in which the carrier moves, and means to guide the carrier downwardly with respect to the loom.

7. In a loom, a set of warp beams arranged. in vertical alignment, a single movable carrier to support the beams, said beams being all disposed on the same side of the carrier and deriving their chief support from the carrier, the beams being removable from the carrier by a motion at rightangles to the plane in which the carrier moves, and means to guide the carrier downwardly and rearwardly with respect to the loom.

8. In'a narrow ware loom, a plurality of aligned groups of warp beams, a carrier for each group of beams, and means to guide each carrier to aposition substantially parallel to but out of alignment with the other groups.

9. In a narrow ware loom, a plurality of aligned groups of warp beams, and means to guide a group to a position parallel to and out of alignment with the other groups.

10. In a narrow ware loom, a plurality of aligned groups of warp beams, and means to guide a group to a position parallel to Z and out of alignment with the other groups,

said means including a downwardly inclined element. p

11. In a narrow ware looni, a plurality of groups of aligned warp beams, and means to guide any selected group to a position below and out of alignment with the other groups.

12. In a narrow ware loom, a plurality of groups of aligned warp beams, and means to guide any selected group to a position below and behind the other groups.

13. In a narrow ware loom, a plurality of groups of aligned warp beams, a downwardly inclined guide for each carrier, and a sliding connection between each group and the corresponding guide therefor, whereby each group may be moved downwardly to a position out of alignment with the other groups. I

14.1111 a narrow ware loom, a plurality of groups of aligned, warp beams, a carrier for each group, a guide for each carrier extending in a direction transverse of the plane of the groups, and a sliding connection between each carrier and its guide.

15. In a narrow ware loom, a plurality of groups of aligned warp beams, a carrier for each group, a guide for each carrier extending rearwardly, and means defining a sliding connection between each carrier and its guide. I

16. In a narrow ware loom, a plurality of groups of aligned warp beams, a carrier for each group, an inclined guide for each carrier extending rearwardly and downwardly, and means defining a sliding connection be tween each carrier and its guide.

17. In a narrow ware loom, a plurality of groups of aligned warp beams, an inclined guide for each grou 3 extending transversely of the plane of t e groups, a connection between each group and the corresponding guide, and a stop on each guide to limit movement of the corresponding group.

In testimony whereof we have hereunto aflixed our signatures;

ELBRIDGE R. HOLMES. MARTIN R. ABRIAL. 

